Hi folks. We're having problems uploading large files with the OReilly
MultipartRequest class when using ssl. Files under 10mb work fine. If we
upload more than that (in one large file or a combination of smaller ones),
we get an Array Index Out of Bounds exception (dump follows). This only
happens going through ssl; non-secure uploads work fine with very large
files.
I found a very similar bug report on the servlets.com site (description
follows), and upgraded to the 19-Jun-2001 version of the
com.oreilly.servlet package. Same symptoms after the upgrade.
Any ideas or help would be most appreciated. Thanks.
-matt
Environment:
------------
- Win2000 Server, patched up to latest levels
- Tomcat 4.0.1 Binary distribution, running as a service
- IIS 5.0, using ISAPI_Redirect.dll dated 12/08/01 (Thank you Henri Gomez!)
- SSL Enabled through IIS
- I have several servers with similar environments. Some servers have
multiple logical web servers with multiple Tomcat instances. This
particular server has only one instance of each. However, the same
behavior
is observed on any server/instance with SSL.
Facts:
------
1] This only happens on https://, all other forms work fine.
2] This only happens on files larger than just under 11MB (11,172,378
bytes,
plus or minus a few bytes for filename payload).
3] The "Assert Failed" error comes from Ajp13.java, Ajp13Packet.java, or
MsgAjp.java. I am not a Java programmer (yes, another one of those
'systems' guys), but was able to dig throught the source to find the actual
system.out lines.
4] 11,172,378 / 1364 = 8191+-, the same size as the ajp packet. Why 1364
ajp packets? Anything smaller works fine.
Here's the bug report from servlets.com:
Bug: File upload does not work with Apache JServ when uploading large
binary files
Symptoms: When handling a file upload the
com.oreilly.servlet.MultipartRequest class throws an
ArrayIndexOutOfBoundsException.
Reason: JServ supports the older Servlet API 2.0 and in the API 2.0 source
code for
javax.servlet.ServletInputStream there's a bug in the readLine(byte[] buf,
int off, int len) method
where the len parameter is ignored, and as a result reading input lines
that exceed the buf length
will throw an ArrayIndexOutOfBoundsException.
Workaround: The com.oreilly.servlet library has implemented its own
buffering to work around this
issue. If you're using another library, upgrade to a server that supports
Servlet API 2.1 or later.
Here's the exception dump:
14:24:22,311 [Ajp13Processor[8009][24]] ERROR
com.psc.ams.servlets.PSCUploadFilesByExtension -
Unexpected Exception occured in PSCUploadFiles.doPost().
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.apache.ajp.Ajp13Packet.getBytes(Ajp13Packet.java:459)
at org.apache.ajp.Ajp13.refillReadBuffer(Ajp13.java:641)
at org.apache.ajp.Ajp13.doRead(Ajp13.java:594)
at
org.apache.ajp.tomcat4.Ajp13InputStream.read(Ajp13InputStream.java:99)
at
com.oreilly.servlet.multipart.BufferedServletInputStream.fill(BufferedServletInputStream.java:63)
at
com.oreilly.servlet.multipart.BufferedServletInputStream.readLine(BufferedServletInputStream.java:107)
at
com.oreilly.servlet.multipart.LimitedServletInputStream.readLine(LimitedServletInputStream.java:59)
at
com.oreilly.servlet.multipart.PartInputStream.fill(PartInputStream.java:92)
at
com.oreilly.servlet.multipart.PartInputStream.read(PartInputStream.java:190)
at
com.oreilly.servlet.multipart.PartInputStream.read(PartInputStream.java:151)
at com.oreilly.servlet.multipart.FilePart.write(FilePart.java:186)
at com.oreilly.servlet.multipart.FilePart.writeTo(FilePart.java:145)
at
com.oreilly.servlet.MultipartRequest.<init>(MultipartRequest.java:139)
at
com.psc.ams.servlets.PSCUploadFilesByExtension.doPost(PSCUploadFilesByExtension.java:480)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.RequestDumperValve.invoke(RequestDumperValve.java:221)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:371)
at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:424)
at java.lang.Thread.run(Thread.java:484)
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